Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 185mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke185 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S
The AirTAC SAIJ200X185-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. By turning the external stopper screw, you can trim the nominal 185 mm travel back by up to 30 mm, creating a precise 155-185 mm usable window for exact end-position tuning at commissioning. As a 200 mm bore unit, it delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa.
This SKU is equipped with an -S magnet for position sensing and uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches exactly where the logic requires. The rear adjuster acts purely as a mechanical stop to set the retract end; it does not lock the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 185 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×185 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S Is Used
Heavy Pressing Operations
Dial in the exact 155-185 mm travel window during setup to ensure consistent high-force pressing of heavy components without adding external stop blocks.
Product Changeover
Quickly readjust the retract end position by up to 30 mm when switching machinery between different product sizes, minimizing line downtime.
Automated Assembly Lines
Integrate CMSE or DMSE sensors via the dual-side barrel grooves to confirm end-of-stroke position during heavy-duty automated assembly tasks.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S the Right Cylinder?
Selecting this 200 mm bore model provides a maximum thrust of 3204 kgf at 1.0 MPa, making it ideal for heavy pressing and clamping. If your application requires less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which might better suit medium-duty tasks while saving physical space.
The adjustable stroke is chosen over a fixed SAI cylinder when you need variable end-stops for product changeovers on a line without physically swapping the actuator. For load-holding without continuous air pressure, this cylinder is insufficient; the rear adjuster is a travel stop, not a brake, so you would need to specify a SAIL pneumatic lock, a BSAI clamp-lock, or an external pilot-operated check valve. This configuration features PT tapered ports (G3/4), a 40 mm rod with an M36x2 thread, and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX185-30S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers up to 3204 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 185 mm nominal stroke by up to 30 mm. This creates a usable travel window of 155 to 185 mm, which can be fine-tuned during commissioning without replacing the cylinder.
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